//The MIT License
//
//Copyright (c) 2009 nodchip
//
//Permission is hereby granted, free of charge, to any person obtaining a copy
//of this software and associated documentation files (the "Software"), to deal
//in the Software without restriction, including without limitation the rights
//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//copies of the Software, and to permit persons to whom the Software is
//furnished to do so, subject to the following conditions:
//
//The above copyright notice and this permission notice shall be included in
//all copies or substantial portions of the Software.
//
//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//THE SOFTWARE.
package tv.dyndns.kishibe.client.creation;

import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;

import tv.dyndns.kishibe.client.Service;
import tv.dyndns.kishibe.client.packet.PacketProblemCreationLog;

import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.VerticalPanel;

public class PanelProblemCreationLog extends VerticalPanel {
	private static final Logger logger = Logger.getLogger(PanelProblemCreationLog.class.getName());

	public PanelProblemCreationLog(int problemId) {
		add(new Label("問題変更履歴を読み込み中です"));
		Service.Util.getInstance().getProblemCreationLog(problemId, callbackGetProblemCreationLog);
	}

	private final AsyncCallback<List<PacketProblemCreationLog>> callbackGetProblemCreationLog = new AsyncCallback<List<PacketProblemCreationLog>>() {
		@Override
		public void onSuccess(List<PacketProblemCreationLog> result) {
			setCreationLog(result);
		}

		@Override
		public void onFailure(Throwable caught) {
			logger.log(Level.WARNING, "問題作成ログの取得に失敗しました", caught);
		}
	};

	private void setCreationLog(List<PacketProblemCreationLog> logs) {
		clear();
		add(new HTML("問題変更履歴"));

		if (logs.isEmpty()) {
			add(new HTML("問題変更履歴はありません"));
		}

		for (PacketProblemCreationLog log : logs) {
			add(new HTML(log.asSafeHtml()));
		}
	}
}
